Building block or brick



(No Model.)

-. A.INGALLS.

BUILDING BLOCK 0R BRICK.

Patented Feb, 27, 1883.

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UNITED STATES PATENT OFFICE.

ALLEN INGALLS, OF GOOPERSTQWN, NEW YORK.

BUILDING BLOCK OR BRICK.

SPECIFICATION forming part of Letters Patent No. 272,883, dated February27, 1883; Application filed August 25, 1882. (N model.)

To all whom it may concern Be it known that I, ALLEN INGALLs, ofGooperstowmUtsego county, State of New York, have invented a certain newand useful Improvement in Building Bricks or Blocks, of which thefollowing is a specification, reference being bad to the accompanyingdrawings, in which-- Figure 1 is a perspective view of my improved brickor block. Fig. 2 represents the manner of laying the same so as to forma wall, the several courses being shown as of different lengths in orderto illustrate more clearly the arrangement of the bricks or blocks.

The brick or block (shown at A) may be of suitable length, breadth, andthickness, and can be made of any appropriate material. It is formedwith flat top and bottom faces, a, a straight outer side, 11, and twoequally-inclined converging sides, 0, which start from short sides 01,that stand at right angles to the side I), and join a third short side,0, which is what may be termed the inner truncated end of the brick orblock. The short sides are necessary in order to strengthen the blockand to permit contact between contiguous bricks or blocks of a course tothe extent requisite to enable them to be laid accurately and closelytogether. The truncated end 6 is for the purpose of obtaining a largeair-space between opposite rows of a course. The blocks may be ofvarying size as required by the dimensions and thickness of the wallwhich they are to form. They may-be of any desired color and theirexternal sides may be impressed with orcarry any suitable design.

The manner of laying the blocks is represented in Fig. 2. They are laidin courses, as customary. Each course, however, consists of two rows ofthe blocks, the tapering ends of the blocks in each row pointing inwardand the projecting tapering ends of one row entering the recessesbetween the tapering projecting ends of the opposite row, the blocksbeing so laid that between the two rows of each course there extends acontinuous zigzag air chamber or space, f. Thus the wall is traversed byan air-chamber of very considerable area throughout its extent, while atthe same time the blocks and course of blocks are bound firmly together,just as though there were no air space or chamber. In turning corners orending against doors or windows I use halfblocks B, and at the corner,as shown in Fig. 2, I also use rectangular blocks G. The short sides benable me to obtain by mortar or cement adherence between and union ofcontiguous blocks of the row or course without interfering with theair-chamber, while the inner truncated end, 6, gives a larger space atintervals and prevents possibility of contact between the blocks ofopposite rows.

What I claim, and desire to secure by Letters Patent, is-

1. A building brick or block formed with the outer face, 1), short sidesd, which stand at right angles with face b inclined, converging sides 0,and truncated inner end, 6, substantially as hereinbefore set forth.

2. A wall composed of building-bricks of 7c the form hereinbeforespecified, laid together in courses in the manner illustrated, so as to'form between the two rows of blocks composing each course the zigzagair-chamber f.

In testimony whereof I have hereunto set my hand this lllth day ofAugust, 1882.

ALLEN INGALLS.

Witnesses:

JAMES G. PARsHALL, W. D. BODEN.

